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Unpolarized light is incident on four polarizing sheets with their transmission axes oriented as shown in the figure, in which θ1 = 27.0° and θ2 = 50.0°. What percentage of the initial light intensity is transmitted through this set of polarizers?

  • physics -

    If polarized light of intensity I₀ is incident on a polarizing sheet, the intensity transmitted by
    the sheet depends on the angle between the polarization direction of the light and the transmission axis of the sheet, φ, via
    I= I₀•cos²φ.

    After the 1st sheet

    After the 2nd sheet

    After the 2nd sheet

    After the 3rd sheet

    (I₄/I₀)•100%= 19.7%

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